A re-roofing project generates a truly staggering volume of waste. Up until a few years ago, old asphalt shingles were destined for the landfill. Fortunately, however, more and more shingle recycling facilities have begun popping up across the country. If you would like to learn more about how such facilities put those shingles to use, read on. This article will discuss three key markets for asphalt roofing shingles.
Hot Mix Asphalt
The desirable ingredient in asphalt shingles is--you guessed it--asphalt, which makes up about 40% of the shingle. As you can likely imagine, being able to reuse this asphalt is especially beneficial where paving is concerned. Specifically, asphalt shingles are being used to create lower cost hot mix asphalt for use in the construction of roadways.
Hot mix manufacturers are able to benefit from reusing asphalt shingles in a number of ways. First of all, the asphalt cement in the shingles means that a much smaller--and thus less expensive--proportion of virgin asphalt has to be used. For another thing, the granules that coat asphalt shingles can act as aggregate, meaning manufacturers can save money here as well.
Finally, studies have been conducted showing that hot mix asphalt made using recycled asphalt shingles actually possesses structural advantages over hot mix asphalt made with all virgin ingredients. Recycled shingle asphalt tends to demonstrate better resistance against cracking and rutting. This is believed to be the result of added strength deriving from the fiber and mineral content of the shingles.
Roadway Dust Control
Recycled asphalt shingles have also been utilized as a dust suppression tactic when covering rural roads with gravel. Here the shingles are ground up and mixed in with the gravel. The presence of asphalt helps to act as a binding substance, thus minimizing the amount of dust kicked up by passing vehicles. It also helps to keep the gravel from being kicked off the roadway, thus reducing the maintenance requirements of roads treated in this manner.
It may not strike you as the most creative use, but recycled asphalt roofing shingles have been successfully implemented as an ingredient in new roofing shingles. To be put to this use, the old shingles must be ground down into a fine powder that is then mixed into the asphalt coating for the new shingles. This method of new shingle creation is capable of offering incredible energy savings, since it helps to reduce the amount of virgin asphalt that must be used.
For more information about roofing services, visit sites like http://www.americanrenovationssc.com/.Share
2 May 2017
I spent weeks researching metal and shingle roofing to try to figure out what would be the best material to use on my home. I weighed the costs, the length of life, the amount of maintenance required and how well each type would hold up to high winds and strong storms. After compiling all of the information that I needed to make an educated decision about the roofing for my home, I created a blog. This blog is meant to help other homeowners decide which roofing material would be best for their homes now and many years into the future.